<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Practice</title>
    <style type="text/css">
      * {
        margin: 0;
        padding: 0;
      }

      .main {
        margin: auto;
        width: 970px;
      }

      .header {
        width: 970px;
        height: 103px;
        margin-bottom: 10px;
      }

      .header .logo {
        float: left;
        width: 277px;
        height: 103px;
        background-color: red;
      }

      .header .nav {
        float: left;
        width: 679px;
        height: 103px;
        margin-left: 14px;
      }

      .header .nav .top {
        float: right;
        width: 137px;
        height: 49px;
        margin-bottom: 8px;
        background-color: greenyellow;
      }

      .header .nav .bottom {
        float: right;
        width: 679px;
        height: 46px;
        background-color: greenyellow;
      }

      .content {
        width: 970px;
        height: 435px;
        margin-bottom: 10px;
      }

      .content .menu {
        float: left;
        width: 310px;
        height: 435px;
        background-color: gold;
        margin-right: 10px;
      }

      .content .optionValue {
        float: left;
        width: 650px;
        height: 435px;
      }

      .content .optionValue .article {
        float: left;
        width: 450px;
        height: 400px;
        margin-right: 10px;
      }

      .content .optionValue .article .artFount {
        width: 450px;
        height: 240px;
        margin-bottom: 10px;
        background-color: rgb(149, 149, 236);
      }

      .content .optionValue .article .artBody {
        width: 450px;
        height: 110px;
        margin-bottom: 10px;
        background-color: rgb(149, 149, 236);
      }

      .content .optionValue .article .artEnding {
        width: 450px;
        height: 30px;
        background-color: rgb(149, 149, 236);
      }

      .content .optionValue .img {
        float: left;
        width: 190px;
        height: 400px;
        background-color: rgb(151, 5, 151);
      }

      .content .optionValue .summary {
        float: left;
        width: 650px;
        height: 25px;
        margin-top: 10px;
        background-color: green;
      }

      .footer {
        width: 970px;
        height: 35px;
        background-color: darkblue;
      }
    </style>
  </head>
  <body>
    <div class="main">
      <div class="header">
        <div class="logo"></div>
        <div class="nav">
          <div class="top"></div>
          <div class="bottom"></div>
        </div>
      </div>

      <div class="content">
        <div class="menu"></div>
        <div class="optionValue">
          <div class="article">
            <div class="artFount"></div>
            <div class="artBody"></div>
            <div class="artEnding"></div>
          </div>
          <div class="img"></div>
          <div class="summary"></div>
        </div>
      </div>

      <div class="footer"></div>
    </div>
  </body>
</html>
